Issues with generating processed drawings
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For one of our company’s projects, since all the flanges had to be manufactured manually, we didn’t create drawings for each one individually; instead, we prepared a single A3 sheet containing general drawings along with the parameters and specifications related to the flanges. However, the workers processed all the FF surfaces as if they were RF surfaces. I’m curious to know how other companies handle such manufacturing drawings
Different sealing surfaces, different specifications, and different standards all require separate drawings!
According to the principles of mechanical processing, drawings should be prepared for each specification, format, and standard. However, in our case we use JIS standards, with identical standard parameters; the only difference is that one type of sealing surface is RF while the other is FF. Therefore, a sectional view is used, with one half being RF and the other half FF, and the labels RF and FF are indicated on each side. I think this approach is completely sufficient! Ugh, I really don’t understand workers – they just start working on things without being sure about them, and only ask questions once something goes wrong
When our company produces technical drawings, although they are all on one sheet, each component is represented on separate drawings such as A5, A4, A3, etc
We are all designed according to standards; simply write the standard number of the standard parts in the title bar. There is no need to create separate drawings
A general diagram will work as well, but it’s necessary to explain things clearly to those who will be working on it
Agree with the view from floor 6: The key issue is that the machining technician or planning officer in charge didn’t understand it themselves, nor did they explain it clearly.
When workers are working, they just look at the drawings and rarely read the instructions. I suggest that you draw different types of flanges with different sealing methods separately, rather than marking them on the same drawing; then indicate below which one is intended for technicians
This is where the flaw in the work lies: care must be taken when producing the drawings. Giving instructions verbally is understandable, but who will take responsibility if something goes wrong?
Be careful when producing images~~~ there can be legal consequences! !
Creating separate drawings for each item can reduce the chances of errors; I’ve encountered many issues in the past, and now I’m much more cautious.
For standard items, write down the standard number; for non-standard items, drawings are required.
The drawings provided to workers for work should be as detailed as possible; however, it’s not feasible to list all dimensions at once, so they should be presented separately
A general diagram can be created, but for the same type of items with different specifications, these can be presented in a table format.
We draw standard general drawings, and then the dimensions are marked again; usually, one drawing is provided for each part. How high a level can you expect from today’s workers? They simply follow the drawings as instructed.
In my company, each type of part or flange requires corresponding drawings, in order to determine the quantity to be processed each time. For standardization and ease of preparation, these drawings can be made in the form of generic templates along with tables. When there are several different specifications, separate drawings are used, with the respective specifications and quantities indicated in the tables on each drawing; this makes it easier for the draftsmen and clarifies the tasks for the production staff. It simply involves copying a few more drawings and making the necessary adjustments on them
There’s nothing wrong with the drawings themselves (unless the markings on them are unclear); it’s just the coordination between tasks that is an issue. The workshop technicians failed to provide the technical instructions as part of their job responsibilities, and did not truly participate in the supervision and inspection of the production process.
Just write down the standard number! Also, the reason for this problem is that you didn’t communicate clearly with the workers before starting work; it’s not the workers’ fault!